News Release

CME Group Announces Labor Day Holiday Hours

Mon Aug 20 2007

CHICAGO, Aug. 20 /PRNewswire-FirstCall/ -- CME Group, the world's largest and most diverse exchange, has announced the following trading schedule in conjunction with the U.S. Labor Day holiday (all times are Central time). Please note: this includes CME and CBOT products.

  Friday, August 31     Unless noted below all products close at their
                        regular trading time on the CME and CBOT exchange
                        trading floors as well as CME Globex® and
                        e-cbot®.

                        Commodity futures, foreign exchange (FX), interest
                        rates, GSCI® products, housing and weather option
                        products traded on CME exchange trading floors close
                        at 12:00 noon (commodity options close at
                        12:02 p.m.).

                        Financials* traded on the CBOT exchange trading
                        floors close at 12:00 noon.

                        Commodities, GSCI products, weather, fertilizer and
                        ethanol traded on CME Globex will close at
                        12:00 noon.  FX and interest rates close at
                        3:15 p.m.

                        Financials traded on e-cbot will close at 1:00 p.m.

\

  Sunday, September 2   Exchange trading floors are closed.

                        GSCI products, ETFs, commodities, weather and
                        ethanol traded on CME Globex will be closed.

                        Overnight e-cbot trading is closed for all products.


  Monday, September 3   Exchange trading floors are closed.

                        CME equity indexes halt trading at 10:30 a.m. and
                        resume trading at 5:00 p.m. on CME Globex. FX,
                        interest rates and housing will halt trading at
                        12:00 noon and resume trading at 5:00 p.m.

                        NYMEX/COMEX products halt trading at 4:15 p.m.

                        CME Globex resumes trading at 5:00 p.m.

                        Daytime e-cbot trading is closed for all products.
                        e-cbot opens at normal evening times.


  Tuesday, September 4  Regular trading sessions for CME Globex, e-cbot and
                        exchange trading floors.


  * Financial contracts are Treasury bonds, Treasury notes, interest rate
    swaps and 30-Day Fed Fund futures and options, binary options on the
    target Fed Funds rate, credit default swap index and mini-sized
    Eurodollar futures.

For more details, CME Regular Trading Hours (RTH) and CME Globex holiday schedules can be viewed at http://www.cme.com/trading/res/te/2007labor_day.html. CBOT RTH and e-cbot holiday schedules can be viewed at http://www.cbot.com/cbot/pub/page/0,3181,1029,00.html.

CME Group (http://www.cmegroup.com/) is the world's largest and most diverse exchange. Formed by the 2007 merger of the Chicago Mercantile Exchange (CME) and the Chicago Board of Trade (CBOT), CME Group serves the risk management needs of customers around the globe. As an international marketplace, CME Group brings buyers and sellers together on the CME Globex electronic trading platform and on its trading floors. CME Group offers the widest range of benchmark products available across all major asset classes, including futures and options based on interest rates, equity indexes, foreign exchange, agricultural commodities, energy, and alternative investment products such as weather and real estate. CME Group is traded on the New York Stock Exchange and NASDAQ under the symbol "CME."

The Globe logo, CME, Chicago Mercantile Exchange, CME Group, Globex and E- mini, are trademarks of Chicago Mercantile Exchange Inc. CBOT and Chicago Board of Trade are trademarks of the Board of Trade of the City of Chicago. Standard & Poor's, S&P 500 and S&P, S&P MidCap 400, Standard & Poor's Depositary Receipts and SPDR are trademarks of The McGraw-Hill Companies, Inc. NASDAQ, NASDAQ-100 and the NASDAQ-100 Index are trademarks of The Nasdaq Stock Market, Inc. Nikkei and Nikkei 225 are trademarks of Nihon Keizai Shimbun Inc. The Russell 2000 Index and Russell 1000 Index are registered trademarks of Frank Russell Co. TRAKRS and Total Return Asset Contracts are trademarks of Merrill Lynch & Co., Inc. GSCI is a trademark of Goldman Sachs & Co. Morgan Stanley Capital International, MSCI, and EAFE are trademarks of MSCI. FTSE/Xinhua China 25 is a trademark of FTSE Xinhua Index Limited. Dow Jones and Dow Jones Industrial Average are trademarks of Dow Jones & Company, Inc. CDR Liquid 50 NAIG is a trademark of Credit Derivatives Research LLC. These trademarks are used herein under license. All other trademarks are the property of their respective owners. Further information about CME Group and its products can be found at http://www.cmegroup.com/.

CME-G

SOURCE: CME Group

CONTACT: Media, Allan Schoenberg, +1-312-930-8189, or Pamela Plehn,
+1-312-930-3446, news@cmegroup.com, or Investors, John Peschier,
+1-312-930-8491, all of CME Group

Web site: http://www.cmegroup.com/
http://www.cmegroup.mediaroom.com/

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+1 312 930 3434
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